Hcg level help!

Brianna • Mommy to a girl born 9/12/2008.😇 10/26/18. MMC 5/20/19 🤰🏼 🌈 due in April 2020!

So Friday I found out I was pregnant. I had the faintest line on my home test. Went to the doctor same day their urine test was negative and my hcg came back at a 5 on Friday. Monday’s hcg was 51 and today the ob confirmed I’m pregnant and everything seems ok. Just wondering if 5-51 in less than 72 hours seems fine. I’m almost 100% positive I ovulated late as well.

Here’s my picture of Friday’s test vs Monday’s tests as well

Fridays ^^

Monday’s ^^